Software Engineer, Product

Braintrust
San Francisco, CA

About the company

Braintrust is the end-to-end developer platform for building world-class AI products. AI development is a relatively new paradigm combining code and datasets, incrementally refining both using frequent evaluations. Our product lets you evaluate LLM applications and iteratively improve them, with a rich set of tools to visualize changes and interrogate failures.

Developers integrate Braintrust into their continuous integration and development loops, often running 50+ experiments per day .

Our team includes AI, design, and database veterans who have exited multiple companies and worked at Figma, Nuro, Impira, Singlestore, Google, Amazon, Cruise, and Airtable. We're backed by a16z, Greylock, Elad Gil, Basecase, and leading CEOs/founders.

About the role

We're looking for a product engineer who is passionate about building tools that users love and use every day. You'll work on the core product, hang out with users (developers, product managers, and designers working in AI), and play a key role in shaping the roadmap.

Under the hood, Braintrust is a high performance, local-first, visualization-heavy UI built with modern Typescript and React. Our users work at some of the world's best technology companies and expect our product to be lightning fast, reliable, and intuitive.

What you'll do

  • Build the user-facing pieces of Braintrust. Some examples of what our product engineers have worked on:

    • Charting and data visualization in d3

    • Adding support to visualize outputs from multi-modal LLMs

    • Creating an experience to support human reviewers in the product

  • Create a dialog with end-users to directly solve customer problems and gather feedback about the product

  • Play a significant role in the foundational UI architecture, technology choices, and implementation.

Ideal candidate credentials

  • Expert-level understanding of Typescript, React, HTML, CSS, SQL, NextJS

  • Previous experience founding or working at startups is a plus

  • Has written prompts / tinkered with GPT models and apps

Benefits include

  • Medical, dental, and vision insurance

  • Daily lunch, snacks, and beverages

  • Flexible time off

  • Competitive salary and equity

  • AI Stipend

Equal opportunity

Braintrust is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

Posted 2025-12-13

Recommended Jobs

Senior Software Engineer, ML Infra

Ambient.ai
San Francisco, CA

Who we are: Ambient.ai is a unified, AI-powered physical security platform helping the world’s leading enterprises reduce risk, improve operational efficiency, and gain critical insights. Seven of…

View Details
Posted 2025-12-19

Senior Product Manager

Scribe
San Francisco, CA

tl;dr - We've just raised a successful $75M Series C funding round with a $1.3B valuation &##129412; and are looking for a Senior Product Manager to join our Product team at Scribe. In this role, you…

View Details
Posted 2025-12-01

Software Engineer, Infrastructure

Reinforce Labs
Palo Alto, CA

Member of Technical Staff, Software Engineer Location: Palo Alto, CA (Hybrid) What You'll Work On At Reinforce Labs, we partner directly with customers to build AI systems that enhance the…

View Details
Posted 2026-01-07

Insurance Administrator

Redwood Credit Union
Napa, CA

Redwood Credit Union is looking for an Insurance Administrator, who will perform a wide variety of semi-routine duties to assist Members in the sales and service of ancillary products. Key Responsi…

View Details
Posted 2025-12-18

Superintendent

K2 Staffing
San Diego, CA

The  Superintendent provides the knowledge, skills and experience required to manage the day-to-day field operations of retail, commercial or institutional construction projects that the organization…

View Details
Posted 2025-10-03

Market Manager

Havasu Landing Resort
Lake County, CA

Job Title: Market Manager Department: Resort Market Salary: $ 68,000 annual DOE Postion Type: Permanent / Full-time / Exempt Position Summary: The Market Manager is responsible for trainin…

View Details
Posted 2025-11-28

Director - Risk Management & Compliance

Redlands Community Hospital
Redlands, CA

Reporting to the President & Chief Executive Officer, The Director of Risk Management & Compliance is responsible for designing, implementing, maintaining and communicating an effective hospital compl…

View Details
Posted 2025-12-18

Forward Deployed Engineer

3Y Health
San Francisco, CA

About Us At 3Y Health, we are building AI-driven software to empower healthcare providers and solve the overwhelming administrative complexity that consumes 40% of the industry’s revenue. Our end-to…

View Details
Posted 2026-01-13

Physical Therapist

San Carlos, CA

Large manufacturing plant in E.TN has immediate opening for a Machining Engineer. This is newly created job due to new production lines being added.    The Machining Engineer must have a strong Ma…

View Details
Posted 2025-11-21

Buyer

FullSteam
Scotts Valley, CA

Full Steam Staffing is now hiring a Buyer for our Vendor Purchasing Department in Scotts Valley, CA - Apply now! Job Title: Buyer Pay rate: $20-$21/hr. Shift: 1st Benefits: Medical, D…

View Details
Posted 2025-12-18